Her account @conchagzaera – which at the time of writing boasts more than 90,000 followers – features her incredibly detailed artwork, all created using...wait for it: Microsoft Paint.

In an interview with Radio Valencia, Zaera says she used to take art classes in oil painting, but could not practice at home due to the strong smell of the paints. When her children gave her a computer, she discovered Microsoft Paint.

As UltimaHora reports, Zaera told the station that she gets most of her inspiration from postcards and landscapes. She does all of her work on Windows 7 and with a mouse.

Per Vanguardia, Zaera used to post her artwork on Facebook, until one of her granddaughters suggested that she start using Instagram instead. On March 9, she had more than 300 followers. But then, Twitter user @femilimon shared a screenshot of her account.

The tweet went viral, and within the last week, Zaera's follower count has soared from 361 to more than 90,000.

And rightfully so, because her computer-generated paintings are absolutely amazing.

She told Vanguardia that it takes at least two weeks to do each one and focuses intensely on the details.